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Vintage Synth Repair

Index last updated: 2026-04-28 23:41 UTC

Message

Re: Voltage Control Question

2010-10-03 by Quazimodo

Thanks Mike,

We have the MS-02 schematics here somewhere I belive so it would be quite easy to build the 'Log Amp' as I think it's called.

Also - I think the Korg and the Moog system for trigger is both S-trig if I'm right? If so then they would directly interface trigger-wise, it would be just the CV side I would need to 'doctor'.

Cheerz,
TOM





--- In vintagesynthrepair@yahoogroups.com, Mike de Vries <mrjdevries@...> wrote:
>
> Korg made a converter, The Korg MS-02 (Not MS-20 lol)
> Â 
> They are not that common, and cost a few bucks when they come up.
> 
> 
> 
> 
> 
> Â  
> 
> 
> 
> no, tom, not directly, as you correctly surmise, the two manufacturers used different scaling systems. yamaha & korg went hz/volt (except for the korg mono/poly, for some reason- the SSM chips maybe?) while moog, roland, arp & others are volt/octave.
> 
> I'm not even sure that anyone ever made a converter; it would need to be a high-quality exponential-to-linear voltage converter. would it be worth it? why not try combining the moog boits you have with a different synth than the ms20?
> 
> d.
>

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